DRIVING METHOD OF CHARGE TRANSFER IMAGE PICKUP DEVICE

摘要

PURPOSE:To prevent the generation of flicker by transferring an electric charge of the 1st vertical transfer electrode group and an electric charge of the 2nd vertical transfer electrode group and mixing the charges so as to form them into a unit picture element signal charge. CONSTITUTION:Since the electric charge stored in a photoelectric conversion storage diode 1 is transferred to transfer electrodes phiV2, phiV4 of a vertical charge transfer register 9, the highest voltage is applied. The electrode of the highest level is applied with the phiV2 and with the phiV4 after a prescribed time. Then the phiV2 and the phiV4 are applied with a prescribed time difference so as to transfer the stored charge of the diode 1 to the register 9. The two charges are mixed after that and the result is outputted sequentially. On the other hand, the electrodes phiV1, phiV3 are closed when the stored charge of the diode 1 is transferred to the phiV2 and phiV4 to prevent flicker due to the leakage of the charge caused by capacitor coupling.